RIM has seen the light when it comes to web technology and HTML5 and they are chasing after it full force with contributions to projects like PhoneGap, WebKit, and more. They announced on their DevBlog that one of their own developers, Jason Scott (@JsonScott), has been made an official committer to the jQuery Mobile project. His main responsibility will be to ensure the jQuery Mobile experience on BlackBerry is the best possible and other general fixes.
What is even more interesting is a project coming from Jason and his team. They announced that his team will be releasing a theme for jQuery Mobile to give it the BlackBerry 10 look and feel. They do not indicate if this will be based off their work from BBUI.js but if so it should look very nice! Keep up the good work!